n-Alkylsiloxanes: From single monolayers to layered crystals. The formation of crystalline polymers from the hydrolysis of n-octadecyltrichlorosilane

A. N. Parikh, M. A. Schivley, E. Koo, K. Seshadri, D. Aurentz, K. Mueller, D. L. Allara

Research output: Contribution to journalArticle

259 Citations (Scopus)

Abstract

Formation of a new class of layered, microcrystalline polymers from a simple hydrolytic polycondensation of n-alkyltrichlorosilanes in water is demonstrated. The structure of the polymeric condensate, determined from a combination of spectroscopic, diffraction, and thermal analysis techniques, consists of highly uniform, pillared microcrystallites in which the inorganic siloxy backbones are present in periodic layers, each containing a monomolecular layer of intercalated water, separated by crystalline assemblies of alkyl chains. The alkyl-chain organization shows a remarkable resemblance to that in highly organized, self-assembled monolayers formed from the precursor silane molecules on hydrophilic substrates and this parallel lends support to the critical importance of water in monolayer self-assembly of silanes.

Original languageEnglish (US)
Pages (from-to)3135-3143
Number of pages9
JournalJournal of the American Chemical Society
Volume119
Issue number13
DOIs
StatePublished - Apr 2 1997
Externally publishedYes

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Silanes
Hydrolysis
Monolayers
Polymers
Crystalline materials
Crystals
Water
Self assembled monolayers
Polycondensation
Self assembly
Thermoanalysis
Hot Temperature
Diffraction
Molecules
Substrates
octadecyltrichlorosilane

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

n-Alkylsiloxanes : From single monolayers to layered crystals. The formation of crystalline polymers from the hydrolysis of n-octadecyltrichlorosilane. / Parikh, A. N.; Schivley, M. A.; Koo, E.; Seshadri, K.; Aurentz, D.; Mueller, K.; Allara, D. L.

In: Journal of the American Chemical Society, Vol. 119, No. 13, 02.04.1997, p. 3135-3143.

Research output: Contribution to journalArticle

Parikh, A. N. ; Schivley, M. A. ; Koo, E. ; Seshadri, K. ; Aurentz, D. ; Mueller, K. ; Allara, D. L. / n-Alkylsiloxanes : From single monolayers to layered crystals. The formation of crystalline polymers from the hydrolysis of n-octadecyltrichlorosilane. In: Journal of the American Chemical Society. 1997 ; Vol. 119, No. 13. pp. 3135-3143.
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T2 - From single monolayers to layered crystals. The formation of crystalline polymers from the hydrolysis of n-octadecyltrichlorosilane

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AU - Seshadri, K.

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AU - Mueller, K.

AU - Allara, D. L.

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AB - Formation of a new class of layered, microcrystalline polymers from a simple hydrolytic polycondensation of n-alkyltrichlorosilanes in water is demonstrated. The structure of the polymeric condensate, determined from a combination of spectroscopic, diffraction, and thermal analysis techniques, consists of highly uniform, pillared microcrystallites in which the inorganic siloxy backbones are present in periodic layers, each containing a monomolecular layer of intercalated water, separated by crystalline assemblies of alkyl chains. The alkyl-chain organization shows a remarkable resemblance to that in highly organized, self-assembled monolayers formed from the precursor silane molecules on hydrophilic substrates and this parallel lends support to the critical importance of water in monolayer self-assembly of silanes.

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